<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 添加商品 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoods">
            <el-button slot="append" icon="el-icon-search" @click="getGoods"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="gotoAddGoodPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 商品列表 -->
      <el-row>
        <el-col :span="24">
          <el-table :data="goods" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column prop="goods_name" label="商品名称"></el-table-column>
            <el-table-column prop="goods_price" label="商品价格(元)" width="90px"></el-table-column>
            <el-table-column prop="goods_weight" label="商品重量" width="90px"></el-table-column>
            <el-table-column label="创建时间" width="150px">
              <template slot-scope="scope">
                <div>{{scope.row.add_time | dateFormat}}</div>
              </template>
            </el-table-column>
            <el-table-column label="操作" width="120px">
              <template slot-scope="scope">
                <el-button
                  type="primary"
                  icon="el-icon-edit"
                  size="mini"
                  @click="showEditGoodDialog(scope.row.goods_id)"
                ></el-button>
                <el-button
                  type="danger"
                  icon="el-icon-delete"
                  size="mini"
                  @click="showDeleteGoodConfirm(scope.row.goods_id)"
                ></el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-col>
      </el-row>
      <!-- 分页信息栏 -->
      <el-row>
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page.sync="queryInfo.pagenum"
          :page-sizes="[5, 10, 15, 20]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
        ></el-pagination>
      </el-row>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      total: 0,
      goods: []
    };
  },
  methods: {
    async getGoods() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败");
      }
      this.goods = res.data.goods;
      this.total = res.data.total;
    },
    // 分页相关
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoods();
    },
    handleCurrentChange(current) {
      this.queryInfo.pagenum = current;
      this.getGoods();
    },
    // 编辑商品弹出框
    showEditGoodDialog(id) {},
    // 删除商品确认框
    async showDeleteGoodConfirm(id) {
      const result = await this.$confirm(
        "此操作将永久删除此商品的信息，是否确认？",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      if (result !== "confirm") {
        return this.$message.info("操作已取消");
      }
      const { data: res } = await this.$http.delete("goods/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除商品信息失败");
      }
      this.$message.success("删除商品信息成功");
      this.getGoods();
    },
    // 跳转至添加商品页面
    gotoAddGoodPage() {
      this.$router.push("/goods/add");
    }
  },
  created() {
    this.getGoods();
  }
};
</script>

<style>
</style>
